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package com.vj;
import android.app.Activity;
import android.os.Bundle;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.net.Uri;
import android.util.Log;
import android.view.View;
import android.webkit.WebView;
import android.widget.Button;
import android.widget.Toast;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.auth.AccessToken;
import twitter4j.auth.RequestToken;
public class A1Activity extends Activity {
private static final String PREF_ACCESS_TOKEN = "accessToken"; // Called when the activity is first created.
private static final String PREF_ACCESS_TOKEN_SECRET = "accessTokenSecret";// Name to store the users access token secret
public final static String CONSUMER_KEY = "LD0YgihZOANueIyGOZcjA"; // "your key here";
public final static String CONSUMER_SECRET = "VsIRX2LweeyNadgSlsunGYc9liTX51Wao2eBfJCjA"; // "your secret key here";
private static final String CALLBACK_URL = "tweet-to-twitter-vasujain-android:///";// The url that Twitter will redirect to after a user log
private SharedPreferences mPrefs; // Preferences to store a logged in users credentials
private Twitter mTwitter;// = new TwitterFactory().getInstance();
private RequestToken mReqToken;/** The request token signifies the unique ID of the request you are sending to twitter */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
System.out.println("On Create");
mPrefs = getSharedPreferences("twitterPrefs", MODE_PRIVATE);
mTwitter = new TwitterFactory().getInstance();
mTwitter.setOAuthConsumer(CONSUMER_KEY, CONSUMER_SECRET);
//mLoginButton = (Button) findViewById(R.id.login_button);
//oAuth();
}
public void loginNewUser() {
try {
System.out.println("Login New");
mReqToken = mTwitter.getOAuthRequestToken(CALLBACK_URL);
WebView twitterSite = new WebView(this);
twitterSite.loadUrl(mReqToken.getAuthenticationURL());
setContentView(twitterSite);
System.out.println("login new ");
} catch (TwitterException e) {
System.out.println("Twitter Login error, try again later ");
Toast.makeText(this, "Twitter Login error, try again later", Toast.LENGTH_SHORT).show();
}
}
@Override
protected void onNewIntent(Intent intent) {
System.out.println("Intent New");
super.onNewIntent(intent);
dealWithTwitterResponse(intent);
}
private void dealWithTwitterResponse(Intent intent) {
System.out.println("Twi Respose");
Uri uri = intent.getData();
if (uri != null && uri.toString().startsWith(CALLBACK_URL)) { // If the user has just logged in
String oauthVerifier = uri.getQueryParameter("oauth_verifier");
authoriseNewUser(oauthVerifier);
}
}
private void authoriseNewUser(String oauthVerifier) {
try {
System.out.println("Auth User");
AccessToken at = mTwitter.getOAuthAccessToken(mReqToken, oauthVerifier);
mTwitter.setOAuthAccessToken(at);
saveAccessToken(at);
// Set the content view back after we changed to a webview
setContentView(R.layout.main);
} catch (TwitterException e) {
Toast.makeText(this, "Twitter auth error x01, try again later", Toast.LENGTH_SHORT).show();
}
}
private void saveAccessToken(AccessToken at) {
System.out.println("saveAccessToken ");
String token = at.getToken();
String secret = at.getTokenSecret();
Editor editor = mPrefs.edit();
editor.putString(PREF_ACCESS_TOKEN, token);
editor.putString(PREF_ACCESS_TOKEN_SECRET, secret);
editor.commit();
}
}
Manifest File
- Code: Select all
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.vj"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:label="@string/app_name"
android:name=".A1Activity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="tweet-to-twitter-vasujain-android" />
</intent-filter>
</activity>
</application>
</manifest>
Main.xml
- Code: Select all
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="@+id/login_button"
android:onClick="loginNewUser"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Login" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello" />
</LinearLayout>
The output for Error Log is :
11-18 16:30:55.044: I/Process(392): Sending signal. PID: 392 SIG: 9
11-18 16:33:32.024: I/System.out(422): On Create
11-18 16:42:32.664: D/AndroidRuntime(422): Shutting down VM
11-18 16:42:32.664: W/dalvikvm(422): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
11-18 16:42:32.864: E/AndroidRuntime(422): FATAL EXCEPTION: main
11-18 16:42:32.864: E/AndroidRuntime(422): java.lang.IllegalStateException: Could not find a method loginNewUser(View) in the activity class com.vj.A1Activity for onClick handler on view class android.widget.Button with id 'login_button'
11-18 16:42:32.864: E/AndroidRuntime(422): at android.view.View$1.onClick(View.java:2059)
11-18 16:42:32.864: E/AndroidRuntime(422): at android.view.View.performClick(View.java:2408)
11-18 16:42:32.864: E/AndroidRuntime(422): at android.view.View$PerformClick.run(View.java:8816)
11-18 16:42:32.864: E/AndroidRuntime(422): at android.os.Handler.handleCallback(Handler.java:587)
11-18 16:42:32.864: E/AndroidRuntime(422): at android.os.Handler.dispatchMessage(Handler.java:92)
11-18 16:42:32.864: E/AndroidRuntime(422): at android.os.Looper.loop(Looper.java:123)
11-18 16:42:32.864: E/AndroidRuntime(422): at android.app.ActivityThread.main(ActivityThread.java:4627)
11-18 16:42:32.864: E/AndroidRuntime(422): at java.lang.reflect.Method.invokeNative(Native Method)
11-18 16:42:32.864: E/AndroidRuntime(422): at java.lang.reflect.Method.invoke(Method.java:521)
11-18 16:42:32.864: E/AndroidRuntime(422): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
11-18 16:42:32.864: E/AndroidRuntime(422): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
11-18 16:42:32.864: E/AndroidRuntime(422): at dalvik.system.NativeStart.main(Native Method)
11-18 16:42:32.864: E/AndroidRuntime(422): Caused by: java.lang.NoSuchMethodException: loginNewUser
11-18 16:42:32.864: E/AndroidRuntime(422): at java.lang.ClassCache.findMethodByName(ClassCache.java:308)
11-18 16:42:32.864: E/AndroidRuntime(422): at java.lang.Class.getMethod(Class.java:985)
11-18 16:42:32.864: E/AndroidRuntime(422): at android.view.View$1.onClick(View.java:2052)
11-18 16:42:32.864: E/AndroidRuntime(422): ... 11 more
11-18 16:42:37.404: I/Process(422): Sending signal. PID: 422 SIG: 9
could you tell me where are the things going wrong over here?
